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 TM 55-1925-273-10-1
0089 00
8.
When the desired scope is achieved, check down the speed of the LT.
! CAUTION
Severe shock loading can occur if the clutch brake is tightened while the line is being pulled out
at full speed. Depending on the size of the tow, speed should be no higher than creep speed when
the clutch brake is tightened. Tightening of the clutch brake with the speed of the LT too fast can
cause severe damage to the towing machine.
Do not over tighten the clutch brake. The clutch brake provides shock protection for the towing
machine and should be loose enough to slip under a sudden shock load due to heavy seas or other
reason(s).
9.
Slowly tighten the clutch brake (figure 7, item 1) by turning the clutch brake handwheel (figure 7, item 2) until the clutch
brake is properly adjusted for tow size, sea conditions, and the LT speed.
WARNING
The clutch brake should not slip excessively. If this occurs however, the slip alarm will
activate. Continuous slipping can eventually cause an increase in scope to the point where
the towline could be lost. Severe personal injury or death could result from towline whip if
the towline is lost.
NOTE
Occasional slippage during heavy seas indicates that the clutch brake is doing its job, and it is
necessary to heave in occasionally to maintain desired scope. Towing on smooth or moderate
seas should not cause slippage of the clutch brake.
10. Towing operations can commence when the clutch brake is properly tightened.
TOWING MACHINE OPERATION GYPSEY HEAD MODE
1.
Perform the Towing Machine Operation System Setup procedure in this work package.
2.
Verify that the SYSTEM READY indicator (figure 11, item 1) on the towing machine operator control panel (figure 11,
item 2) is illuminated.
3.
Verify that the SYSTEM PRESSURE gauge (figure 11, item 3) indicates that the towing machine hydraulic system is
supplying hydraulic fluid to the system.
4.
Place the local or remote switch (figure 11, item 4) in the local position by pushing it down fully to the NORMAL
OPERATION AT CONSOLE mode.
5.
Ensure that the directional control lever (figure 11, item 5) is in the NEUTRAL position. The NEUTRAL position is
centered between the PAYOUT and HEAVE positions.
6.
Loosen the clutch brake (figure 7, item 1) by turning the handwheel (figure 7, item 2) to allow free rotation of the ring
gear.
0089 00-16
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